212224200091 has 2 divisors, whose sum is σ = 212224200092. Its totient is φ = 212224200090.

The previous prime is 212224200053. The next prime is 212224200127. The reversal of 212224200091 is 190002422212.

212224200091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212224200091 - 2¹⁷ = 212224069019 is a prime.

It is a super-2 number, since 2×212224200091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212224200691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106112100045 + 106112100046.

It is an arithmetic number, because the mean of its divisors is an integer number (106112100046).

Almost surely, 2^212224200091 is an apocalyptic number.

212224200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224200091 is an equidigital number, since it uses as much as digits as its factorization.

212224200091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 212224200091 in words is "two hundred twelve billion, two hundred twenty-four million, two hundred thousand, ninety-one".